立井开拓时，如果只装备一个井筒，该井筒的提升方式为（）

立井井筒施工时，在井筒中布置安全梯的作用是(  )。

继电保护装置是保证电力元件安全运行的基本装备,任何电力元件不得在无保护的状态下运行

提升容器的滑动罐耳与刚性罐道之间的间隙每侧不得超过（）。

每个提升容器（或者平衡锤）只有2根罐道绳时，每根罐道绳的刚性系数不得小于（）N/m。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。